Inventor · disambiguated record
Zhaohua Chang
Also filed as: CHANG ZHAOHUA
9 granted patents·12 pending applications·887 citations·filing 1991–2023
86Inventor score
Files withACCU TARGET MEDIPHARMA SHANGHAI CO LTD6CRYOMEDICAL SCIENCES INC3MICROPORT VISIONPOWER MEDTECH SHANGHAI CO LTD3SHANGHAI MICROPORT ROTAPACE MEDTECH CO LTD3ACCUTARGET MEDIPHARMA SHANGHAI CO LTD2
Top patents by PatentIndex Score
21 records- 0194US5400602ACryogenic transport hoseCRYOMEDICAL SCIENCES INC·Filed 1993·Granted Mar 28, 1995·146 cites·11 claims
- 0286US5520682ACryosurgical instrument with vent means and method using sameCRYOMEDICAL SCIENCES INC·Filed 1995·Granted May 28, 1996·463 cites·22 claims
- 0380US5254116ACryosurgical instrument with vent holes and method using sameCRYOMEDICAL SCIENCES INC·Filed 1991·Granted Oct 19, 1993·278 cites·24 claims
- 0457US2024091061A1Probe deviceMICROPORT VISIONPOWER MEDTECH SHANGHAI CO LTD·Filed 2023·Application pending·0 cites
- 0554US2024335276A1Intraocular lensMICROPORT VISIONPOWER MEDTECH SHANGHAI CO LTD·Filed 2022·Application pending·0 cites
- 0652US2025000563A1Cryoablation needle having j-t double-channelACCU TARGET MEDIPHARMA SHANGHAI CO LTD·Filed 2022·Application pending·0 cites
- 0752US2025032163A1J-t slot position-adjustable cryoablation needleACCU TARGET MEDIPHARMA SHANGHAI CO LTD·Filed 2022·Application pending·0 cites
- 0852US2024216171A1Ultrasonic emulsifierMICROPORT VISIONPOWER MEDTECH SHANGHAI CO LTD·Filed 2022·Application pending·0 cites
- 0952US2025009405A1Vacuum wall position adjustable cryoablation needleACCU TARGET MEDIPHARMA SHANGHAI CO LTD·Filed 2022·Application pending·0 cites
- 1046US12213719B2Cryoadhesion apparatusACCU TARGET MEDIPHARMA SHANGHAI CO LTD·Filed 2020·Granted Feb 4, 2025·0 cites·20 claims
- 1146US2024016531A1Multichannel cryoablation system and control method thereforACCU TARGET MEDIPHARMA SHANGHAI CO LTD·Filed 2022·Application pending·0 cites
- 1245US12239355B2Balloon catheter and ablation systemSHANGHAI MICROPORT EP MEDTECH CO LTD·Filed 2019·Granted Mar 4, 2025·0 cites·18 claims
- 1344US2008154258A1Radio Frequency Ablation System with Joule-Thomson CoolerACCUTARGET MEDIPHARMA SHANGHAI·Filed 2007·Application pending·0 cites
- 1443US12484948B2Flow regulating assembly and flexible cryoprobe with adjustable flowACCUTARGET MEDIPHARMA SHANGHAI CO LTD·Filed 2021·Granted Dec 2, 2025·0 cites·11 claims
- 1543US11679239B2Double-layer cryogenic inflatable balloonACCUTARGET MEDIPHARMA SHANGHAI CO LTD·Filed 2021·Granted Jun 20, 2023·0 cites·17 claims
- 1642US9226994B2Intervention medical device and preparation thereofLI JUNFEI·Filed 2011·Granted Jan 5, 2016·0 cites·16 claims
- 1740US12245801B2Adjustable cryoablation needleACCU TARGET MEDIPHARMA SHANGHAI CO LTD·Filed 2020·Granted Mar 11, 2025·0 cites·20 claims
- 1838US2025261964A1Rotational atherectomy apparatus and rotational atherectomy deviceSHANGHAI MICROPORT ROTAPACE MEDTECH CO LTD·Filed 2023·Application pending·0 cites
- 1937US2025255641A1Rotablator apparatusSHANGHAI MICROPORT ROTAPACE MEDTECH CO LTD·Filed 2023·Application pending·0 cites
- 2036US2024423654A1Electrode balloon catheterSHANGHAI MICROPORT ROTAPACE MEDTECH CO LTD·Filed 2022·Application pending·0 cites
- 2134US2013304191A1Stent for a bifurcated vesselCAI XU·Filed 2011·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →